Home / 76,919.80-106,154.65-42,934.90

Finding the Fourth Proportional to 76,919.80, 106,154.65 and 42,934.90

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Solution

The fourth proportional to 76,919.80, 106,154.65 and 42,934.90 is: 59,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,919.80 : 106,154.65 = 42,934.90 : x
  2. Step 2: Convert to fraction form
    76,919.80/106,154.65 = 42,934.90/x
  3. Step 3: Cross multiply
    76,919.80x = 106,154.65 × 42,934.90
  4. Step 4: Simplify right side
    76,919.80x = 4,557,739,282.29
  5. Step 5: Solve for x
    x = 4,557,739,282.29/76,919.80
  6. Step 6: Final answer
    x = 59,253.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.